Wrench.



J. H. SUOMY.

WRENCH..

us.4 RENEWED :UNE 1. 1911.

APPUCATION FILED )lf-11.17, 19 v Y Patented Aug. 14,1917.

"vvRENilIg Specification of lilac-titers*ateiit. ilig.

T 0 all whom 'it may concern.' j

Be 'it knewn fuffa ai, ein: H f'snnr, citizen of the United States, residing at Nasel, in the county of Pacic and State of IVashington, have invented new and useful Improvements in Wrenches, of which the following is a specification.

The present invention relates to improvements in the construction of wrenches.

An object of the invention is to produce a wrench which may be easily and quickly adjusted and which willautomatically and securely lock itself in adjusted position.

A further object of the invention is to simplify and improve the existing art by producing a wrench including a stationary jaw provided with a handle, a movable jaw formed with a shank which is adapted to be arranged longitudinally with relation to the handle, the said shank having a pivoted locking plate provided with an opening through which the handle passes, said plate being normally sustained at an angle to cause the opposite walls provided by the opening to bite against the handle and so lock the movable jaw upon the stationary jaw.

A still further object of the invention is to provide a wrench of this character having a locking plate upon the shank of its movable j aw formed with an opening to receive the handle of the stationary jaw and having spring pressed means for forcing the plate angularly with relation to the shank and handle to bring the opposite walls of the opening into frictional contact with the handle, and to further provide the handle with a guide bail which encircles the shank of the movable jaw to hold the same againstA lateral movement with respect to the handle of the stationary jaw but to permit of a swinging movement of the jaw toward or away from the stationary jaw.

vWith the above and other objects in view, the improvement resides in the construction, combination and arrangement of parts set forth in the following specification and falling within the scope of the appended claim.

In the. drawing:

Figure 1 is a perspective view of a wrench constructed in accordance with the present invention, and

Fig. 2 is a side elevation thereof, the guide bail and the locking plate being shown in section and the dotted lines illustrating the arrangement of parts when the movable *seminary jaar.

@The wrench includes a stationary jaw 1 jaw is towbe adjusted with relation to the portion of its length is preferably round in cross section. The handle 2 adjacent the jaw 1 has pivotally secured to the opposite sides thereofI a substantially U-shaped bail 3.

The numeral 5 designates a movable jaw which has an angularly arranged shank 4 that is passed through the guide bail 3 and is arranged in a line with the handle of the movable jaw 1.

The numeral 6 designates the locking member.y This member is preferably in the nature of a flat plate and has one of its ends bifurcated to straddle the shank 4 at the end thereof and is pivotally secured to said shank, as indicated by the numeral 7 The plate is provided with an opening 8 through whichthe handle 2 of the jaw 1 is passed, and the numeral 9 designates a spring which has one of its ends'secured to one of the edges of the shank 4 and is continued in contact with the rounded end of the said shank and has its free end contacting with and 'exerting a pressure upon the plate 6 to normally swing the plate angularly with respect to the shank 4 and with respect tol the handle 1. locking plate causes the opposite walls pro vided by the opening 8A to bind upon the opposite sides of the handle 2, and so lock the shank upon the handle. When the plate 6 is swung to the position illustrated by the dotted lines in Fig. 2, it will be noted that the shank 4 of the movable jaw will be permitted to move longitudinally with respect to thev handle 2 of the jaw 1, so that the jaws 1 and 5 may be easily and quickly adjusted with relation to the other. It will be further noted that the guide. bail 3 will prevent a sidewise movement of the shank 4 of the jaw 5 but will allow the free longitudinal movement and also a free limited outward movement of the jaw 5 from the jaw 1. Y

I-Iaving thus described the invention, what I claim is:

A wrench comprising a stationary shank having a jaw formed on one end thereof and This angular movement of the disposed at an obtuse angle to the shank,

a bail pivotally secured to the shank, a movable shank extending through said. bail. and

having one end thereof formed with the jaw disposed at an obtuse angle to the shank7 the opposite end of the movable shank being rounded, a locking plate slid- 5 ably kmounted on the stationary shank, parallel spaced arms formed on one end of the plate and pivotally connected to the rounded end of said movable shank7 and a leaf spring having one end thereof secured to 10 the movable shank and extending over said rounded end and between said arms, and having its free end engaging said plate to lock the latter against movement upon said stationary shank.

In testimony whereof I afiX my signa- 15 ture in presence of two witnesses.

JOHN HELMER SUOMY. Witnesses:

J. W. HIGGINS, THos. G. W. OCONNOR.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

